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authorSergey Bugaev <bugaevc@gmail.com>2023-04-29 23:18:19 +0300
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2023-05-01 03:18:48 +0200
commit4e506f67cbe6cd935377da65909f0606014459aa (patch)
treeaa701a83abdd2769c5ee3067cd048646af39ea22 /hurd/intr-msg.c
parenteb14819c14d190830df673c9a3089d82d6b7b8f7 (diff)
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hurd: Replace reply port with a dead name on failed interruption
If we're trying to interrupt an interruptible RPC, but the server fails
to respond to our __interrupt_operation () call, we instead destroy the
reply port we were expecting the reply to the RPC on.

Instead of deallocating the name completely, replace it with a dead
name, so the name won't get reused for some other right, and deallocate
it in _hurd_intr_rpc_mach_msg once we return from the signal handler.

Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-Id: <20230429201822.2605207-4-bugaevc@gmail.com>
Diffstat (limited to 'hurd/intr-msg.c')
-rw-r--r--hurd/intr-msg.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hurd/intr-msg.c b/hurd/intr-msg.c
index 1a086b5141..716d87ab6a 100644
--- a/hurd/intr-msg.c
+++ b/hurd/intr-msg.c
@@ -305,6 +305,7 @@ _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
 	{
 	  /* Make sure we have a valid reply port.  The one we were using
 	     may have been destroyed by interruption.  */
+	  __mig_dealloc_reply_port (rcv_name);
 	  m->header.msgh_local_port = rcv_name = __mig_get_reply_port ();
 	  m->header.msgh_bits = msgh_bits;
 	  option = user_option;